code: def set_macro(self, macro, path, key):
      for base in HKEYS:
          d = read_values(base, path)
          if d:
              self.macros["$(%s)" % macro] = d[key]
              break
  
imports: import sys, os
  from distutils.errors import DistutilsExecError, DistutilsPlatformError, CompileError, LibError, LinkError
  from distutils.ccompiler import CCompiler, gen_lib_options
  from distutils import log
label_desc: Use image node_id 2 for calling the MacroExpander obj's underlying member method code with example usage: obj.set_macro(macro, path, key) without return types